---
product_id: 186661168
title: "LSDA MLF Series Grade 1 Mortise Lock Single Cylinder with Deadbolt Heavy Duty (Dormitory - NO Rocker)"
brand: "lsda"
price: "¥127813"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/186661168-lsda-mlf-series-grade-1-mortise-lock-single-cylinder-deadbolt
store_origin: JP
region: Japan
---

# Key-operated deadbolt Heavy-duty security Rust-proof design LSDA MLF Series Grade 1 Mortise Lock Single Cylinder with Deadbolt Heavy Duty (Dormitory - NO Rocker)

**Brand:** lsda
**Price:** ¥127813
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in your safety with style!

## Quick Answers

- **What is this?** LSDA MLF Series Grade 1 Mortise Lock Single Cylinder with Deadbolt Heavy Duty (Dormitory - NO Rocker) by lsda
- **How much does it cost?** ¥127813 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/186661168-lsda-mlf-series-grade-1-mortise-lock-single-cylinder-deadbolt)

## Best For

- lsda enthusiasts

## Why This Product

- Trusted lsda brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quick Egress:** Designed for immediate exit without hassle.
- • **Unmatched Security:** Experience peace of mind with a robust deadbolt system.
- • **Durable Construction:** Built to withstand the test of time with rust-proof materials.
- • **User-Friendly Operation:** Effortlessly unlock with a key or turn from the inside.
- • **Versatile Functionality:** Ideal for dormitories, storerooms, and more.

## Overview

The LSDA MLF Series Grade 1 Mortise Lock Single Cylinder with Deadbolt is a heavy-duty locking solution designed for dormitories and storerooms. Featuring a rust-proof construction and user-friendly operation, this lock ensures both security and convenience. With a 2-3/4" backset and a 3/4" anti-friction latch bolt, it provides reliable performance for high-traffic areas.

## Description

MLF mortise locks offer excellent strength and security. An oversized escutcheon makes this an excellent retrofit product, and the lever design is compliant with ADA and other accessibility codes. These locks are recommended for use on exterior and interior doors. Typical applications include Offices, Hospitals, Schools, Multi-Family Buildings, Industrial Sites, and Public Buildings. Features: Rust-proof heavy duty 2-3/4" backset lock case Individual spring to prevent lever sag, easily reversible Forged brass lever handles exceed ADA requirements 1" throw heavy duty deadbolt with anti-saw hardened pins Heavy duty 3/4" latch bolt with anti-friction latch Easily reversible Heavy duty stopworks Function: Dormitory with Rocker (MLF12) – Latch bolt operated by lever from either side, except when outside lever is made inoperative by push button or rocker other than key. Dead bolt projected by key from outside and by turn from inside. Dead bolt retracted by key from outside and by turn from inside. Operating inside lever retracts both bolts and outside remains locked. Dormitory without Rocker (MLF13) – Latch bolt operated by lever from either side. Dead bolt projected by key from outside and by turn from inside. Operating inside lever retracts both bolts and unlocks outside. Storeroom (MLF48) – Latch bolt retracted by key outside or by lever inside. Outside lever always fixed. Deadbolt thrown or retraced by key outside or thumb turn inside. Turning inside lever simultaneously retracts both deadbolt and latch bolt. Auxiliary latch deadlocks latch bolt when door is locked. Inside lever is always free for immediate egress.

## Features

- Dormitory with Rocker (MLF12) – Latch bolt operated by lever from either side, except when outside lever is made inoperative by push button or rocker other than key. Dead bolt projected by key from outside and by turn from inside. Dead bolt retracted by key from outside and by turn from inside. Operating inside lever retracts both bolts and outside remains locked.
- Dormitory without Rocker (MLF13) – Latch bolt operated by lever from either side. Dead bolt projected by key from outside and by turn from inside. Operating inside lever retracts both bolts and unlocks outside.
- Storeroom (MLF48) – Latch bolt retracted by key outside or by lever inside. Outside lever always fixed. Deadbolt thrown or retraced by key outside or thumb turn inside. Turning inside lever simultaneously retracts both deadbolt and latch bolt. Auxiliary latch deadlocks latch bolt when door is locked. Inside lever is always free for immediate egress.
- Rust-proof heavy duty 2-3/4" backset lock case
- Heavy duty 3/4" latch bolt with anti-friction latch

## Images

![LSDA MLF Series Grade 1 Mortise Lock Single Cylinder with Deadbolt Heavy Duty (Dormitory - NO Rocker) - Image 1](https://m.media-amazon.com/images/I/21MPtCE3XNL.jpg)

## Available Options

This product comes in different **Size** options.

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**Shop now:** [https://www.desertcart.jp/products/186661168-lsda-mlf-series-grade-1-mortise-lock-single-cylinder-deadbolt](https://www.desertcart.jp/products/186661168-lsda-mlf-series-grade-1-mortise-lock-single-cylinder-deadbolt)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-15*